The increases in sedentary behaviors such as watching television, VCR and playing video games, have been associated with the increase in prevalence of pediatric obesity. Controlled laboratory and clinical research have shown that reducing these sedentary behaviors is associated with reduction in percent overweight in those who are obese and prevention of development of obesity in those at risk. The mechanisms for how reducing sedentary behaviors, including increased time to be physically active, reduced exposure to television advertising for high-fat, low nutrient density foods, and reduced exposure to cues associated with sedentary behaviors that prompt eating.
The aim of this study is to provide detailed information on the influence of changes in physical activity and eating as a function of changes in targeted sedentary behaviors in obese children using an innovative within subject reversal design. Forty six obese children will be studied across three phases. The first phase will be a four-week baseline phase, designed to determine usual sedentary behavior. There will then be two four-week phases designed to increase and decrease sedentary behavior relative to baseline. We hypothesize that reducing sedentary behaviors will result in an increase in physical activity and a reduction in caloric intake in comparison to baseline, and physical activity will be reduced and caloric intake increased relative to baseline when sedentary behaviors are increased above baseline. Moreover, we hypothesize that the process of substitutability of active for sedentary behaviors will be related to the base rates of the targeted sedentary behaviors in relationship to physical activity. Likewise, changes in eating behavior as a function of changing sedentary behaviors will be related to the how often eating is associated with the targeted sedentary behaviors.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Research Project (R01)
Project #
5R01HD039778-02
Application #
6530556
Study Section
Special Emphasis Panel (ZRG1-RPHB-4 (03))
Program Officer
Grave, Gilman D
Project Start
2001-03-01
Project End
2005-02-28
Budget Start
2002-03-01
Budget End
2003-02-28
Support Year
2
Fiscal Year
2002
Total Cost
$350,250
Indirect Cost
Name
State University of New York at Buffalo
Department
Pediatrics
Type
Schools of Medicine
DUNS #
038633251
City
Buffalo
State
NY
Country
United States
Zip Code
14260
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Epstein, Leonard H; Raja, Samina; Daniel, Tinuke Oluyomi et al. (2012) The built environment moderates effects of family-based childhood obesity treatment over 2 years. Ann Behav Med 44:248-58
Epstein, Leonard H; Roemmich, James N; Cavanaugh, Meghan D et al. (2011) The motivation to be sedentary predicts weight change when sedentary behaviors are reduced. Int J Behav Nutr Phys Act 8:13
Carr, Katelyn A; Epstein, Leonard H (2011) Relationship between food habituation and reinforcing efficacy of food. Learn Motiv 42:165-172
Epstein, Leonard H; Wrotniak, Brian H (2010) Future directions for pediatric obesity treatment. Obesity (Silver Spring) 18 Suppl 1:S8-12
Epstein, Leonard H; Dearing, Kelly K; Erbe, Richard W (2010) Parent-child concordance of Taq1 A1 allele predicts similarity of parent-child weight loss in behavioral family-based treatment programs. Appetite 55:363-6
Rollins, Brandi Y; Dearing, Kelly K; Epstein, Leonard H (2010) Delay discounting moderates the effect of food reinforcement on energy intake among non-obese women. Appetite 55:420-5
Epstein, Leonard H; Dearing, Kelly K; Paluch, Rocco A et al. (2007) Price and maternal obesity influence purchasing of low- and high-energy-dense foods. Am J Clin Nutr 86:914-22
Epstein, Leonard H; Temple, Jennifer L; Neaderhiser, Brad J et al. (2007) Food reinforcement, the dopamine D2 receptor genotype, and energy intake in obese and nonobese humans. Behav Neurosci 121:877-86
Epstein, Leonard H; Beecher, Meghan D; Graf, Jennifer L et al. (2007) Choice of interactive dance and bicycle games in overweight and nonoverweight youth. Ann Behav Med 33:124-31

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